Pied-piping with inversion

Pied-piping with inversion is a linguistic phenomenon that occurs in syntax, particularly in the context of question formation in some languages, including English. It's a specific instance of pied-piping, where a phrase is "piped" or moved as a whole to the front of a sentence to form a question. Inversion typically refers to the reversal of the normal subject-verb order, which often occurs in questions.